Ring Alarm Contact Sensor 6-Pack - 2nd Gen | Monitor 6 Doors Or Windows | Instant Alerts | Approximately 3-Year Battery Life | Slim Design | Easy

Ring Alarm Contact Sensor 2-Pack - 2nd Gen | Instant Window & Door Alerts | Approximately 3-Year Battery Life | Slim Design | Easy Installation | Base

Door Chime When Door Opens, Fullhouse Door Sensor Wireless Entry Alarm With 1000ft Range, 60 Chimes And 5 Volume Levels For Business/Store/Home/Office

Sanjie Door Chime, Door Open Contact Sensor Alarm For Business/Store/Home/Office When Entering, With 500 ft Range,26 Chimes 5 Adjustable Volume 2

Ring Alarm Contact Sensor - 2nd Gen | Instant Window & Door Alerts | Approximately 3-Year Battery Life | Slim Design Fits Any Frame | Easy

Door Chime, METAK Wireless Door Open Contact Sensor Alarm With 500 ft Range, 58 Chimes And 5 Volume Levels For Business/Store/Home/Office When

Ecobee Smart Sensor For Doors & Windows 2 Pack - Wifi Contact Sensor For Home Security, Energy Savings - Compatible With Smart Thermostats -

GAGALOR NO&NC 3 Wires Magnetic Garage Door Contacts Heavy Duty Alarm Switch Sensor For Roller Shutter With Adjustable Bracket

Door Window Alarm When Opened For Home Kids Safety With Remote, Door Entry Magnetic Sensor Alarm For Store/Garage,130Db Loud Alarm 4 Working Mode

Eve Door & Window Wireless Contact Sensor (Matter)

Door & Window (Matter) - Smart Contact Sensor, Matter & Thread Works W/ Apple Home/Smartthings/Alexa/Google Home (White)